Prevent cross-site pages when --site-per-process is passed

content/browser/child_process_security_policy_impl.h

Index: content/browser/child_process_security_policy_impl.h
diff --git a/content/browser/child_process_security_policy_impl.h b/content/browser/child_process_security_policy_impl.h
index 8a3d410e5294d75a2452fffc32ca2200e91f26df..93d2b116172e3573d748509d048fc3541b485ed2 100644
--- a/content/browser/child_process_security_policy_impl.h
+++ b/content/browser/child_process_security_policy_impl.h
@@ -15,6 +15,7 @@
 #include "base/memory/singleton.h"
 #include "base/synchronization/lock.h"
 #include "content/public/browser/child_process_security_policy.h"
+#include "webkit/glue/resource_type.h"
 
 class FilePath;
 class GURL;
@@ -110,6 +111,13 @@ class CONTENT_EXPORT ChildProcessSecurityPolicyImpl
   // request the URL.
   bool CanRequestURL(int child_id, const GURL& url);
 
+  // Returns true if the process is permitted to load pages from
+  // the given origin in main frames or subframes.
+  // Only might return false if --site-per-process flag is used.
+  bool CanLoadPage(int child_id,
+                   const GURL& url,
+                   ResourceType::Type resource_type);
+
   // Before servicing a child process's request to enumerate a directory
   // the browser should call this method to check for the capability.
   bool CanReadDirectory(int child_id, const FilePath& directory);